/*
 *  Copyright 2009 rohanranade.
 * 
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 * 
 *       http://www.apache.org/licenses/LICENSE-2.0
 * 
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *  under the License.
 */

package com.google.code.jqif;

import java.io.IOException;

/**
 * Source of QIF Data
 * 
 * @author Rohan Ranade
 */
public interface QIFSource {
    /**
     * Reads the next line
     *
     * @return next line from the QIF source
     *
     * @throws java.io.IOException
     */
    String readLine() throws IOException;
    /**
     * Reads a line without changing the current position
     *
     * @return the next line from the QIF source
     *
     * @throws java.io.IOException
     */
    String peekLine() throws IOException;

    /**
     * Close this QIF source
     */
    void close();
}
